A new type of hinged sea energy dissipation structure

Abstract

The present invention discloses a novel hinged sea ambush energy dissipation structure, which relates to the technical field of water conservancy engineering, including a crushed stone cushion layer, an energy dissipation strip, an articulated steel bar, a water diversion and return flow component, a supporting diversion column, a limiting fixed tooth, and a water venting hole. The surface of the crushed stone cushion layer is evenly and staggeredly arranged with multiple groups of mutually cooperating energy dissipation strips. The present invention improves the traditional sea ambush structure type, not only can realize the accurate elimination of residual energy, but also can solve the problem of the structural transition zone between the building and the riverbed that is rigid and flexible. The strip, wheel sequence and skip bin casting construction method saves costs compared with concrete blocks and meets the requirements of saving stone resources. By evenly and staggered splicing multiple groups of energy dissipation strips in a certain order, the upper surfaces of multiple groups of energy dissipation strips are all inclined, so that a drop-type micro-fall structure is formed between each group of energy dissipation strips, and the energy dissipation strips are separated in a way of breaking the whole into parts and hinged into an integral sea ambush through articulated steel bars.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy engineering, and in particular to a novel hinged seafloor energy dissipation structure. Background Art

[0002] Among the energy dissipation and anti-scouring structures of dam projects, the stilling pool is an important energy dissipation facility. Its stability, structure, energy dissipation and anti-scouring safety are consistent with the safety of the main dam, and the probability of accident and damage is relatively small. In addition to the damage caused by foundation seepage, the main facilities that lead to the safety risk of dams are sea flooding and anti-scouring grooves. Safe and reliable sea flooding and anti-scouring groove facilities are important protective transition zones to ensure the safety of dams. The traditional approach to sea flooding is to use rigid structures such as reinforced concrete or mortar masonry in the upper part, and flexible structures such as frame dry masonry or blocks in the lower part, or both use a single rigid structure or flexible structure. Traditional practices often lead to local scouring and destruction of sea flooding, seriously endangering the safety of main buildings such as energy dissipation pools. From the analysis of the factors that have caused damage or accidents to the main dam projects in the past, during severe water discharge or floods, the sea flooding and anti-scouring grooves of dams are more likely to collapse or be damaged, and the probability of dam failure due to damage to sea flooding and anti-scouring grooves is as high as 80%.

[0003] In order to solve the safety problem of sea ramp facilities in sluice and dam projects, it is necessary to propose a new type of sea ramp structure that meets the design characteristics of sea ramp to provide reliable protection and safety for the project. Summary of the invention

[0004] The purpose of the present invention is to provide a novel hinged sea apron energy dissipation structure in order to solve the problem in the prior art that the sea apron structure is easily destroyed by local scouring, which seriously endangers the safety of main buildings such as energy dissipation pools.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a novel hinged seafloor energy dissipation structure, comprising a gravel cushion layer, energy dissipation strips, hinged steel bars, water diversion and return flow components, supporting diversion columns, position-limiting fixing teeth, and water-emerging holes. A plurality of groups of mutually cooperating energy dissipation strips are evenly and staggeredly arranged on the surface of the gravel cushion layer, and the energy dissipation strips are hinged with hinged steel bars. A plurality of groups of water diversion and return flow components are evenly arranged on the top of the energy dissipation strips, and the number of water diversion and return flow components is three. Supporting diversion columns cooperating with the water diversion and return flow components are evenly and fixedly arranged inside the energy dissipation strips, and the bottom of the supporting diversion columns passes through the bottom of the energy dissipation strips and extends to the interior of the gravel cushion layer.

[0006] Preferably, both sides of the bottom of the energy dissipation block are fixedly provided with limiting fixing teeth extending into the gravel cushion layer, and the cross-section of the limiting fixing teeth is arc-shaped.

[0007] Preferably, water holes are provided at both ends of the energy dissipation strip, the water holes are connected to the gravel cushion layer, and the cross-section of the water holes is circular.

[0008] Preferably, the hinged steel bars are evenly distributed in the longitudinal and transverse directions between the multiple groups of energy dissipation bars, and the hinged steel bars are located in the lower part of the energy dissipation bars and are distributed in a single layer.

[0009] Preferably, an extruded plate matching with the energy dissipation strips is arranged between the energy dissipation strips, and the thickness of the extruded plate is 5 mm.

[0010] Preferably, the crushed stone cushion layer is evenly spread and compacted by crushed stone loose particles, and there are certain gaps between the crushed stones inside the crushed stone cushion layer, and the relative density is not less than 0.65.

[0011] Preferably, the supporting diverter column and the energy dissipation bar are engaged with each other, and the cross section of the supporting diverter column is elliptical.

[0012] Preferably, the energy dissipation strips are heavy, and the cross section of the energy dissipation strips is trapezoidal.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present invention improves the traditional seawater structure type, which can not only achieve accurate elimination of surplus energy, but also solve the problem of structural transition zone between buildings and riverbeds that is both rigid and flexible. The strip, wheel sequence and skip-bin pouring construction methods save costs compared to concrete blocks, meet the requirements of saving stone resources, environmental protection and energy saving, and have high ecological, environmental protection, economic and social values;

[0015] 2. The present invention evenly and staggeredly spliced ​​multiple groups of energy dissipation blocks in a certain order, and the upper surfaces of the multiple groups of energy dissipation blocks were inclined, so that a drop-type micro-fall structure was formed between each group of energy dissipation blocks, and the energy dissipation blocks were divided in a way of breaking the whole into parts and hinged into an integral sea floodplain through hinged steel bars;

[0016] 3. The present invention provides a water diversion and return flow component above each group of energy dissipation strips. The water diversion and return flow component is embedded in the top of the energy dissipation strips as a shaping component. When the river water flushes the present invention, the water diversion and return flow component can play a good role in forward water diversion and reverse drainage of the accumulated river water. When the river water flows forward into the water diversion and return flow component, the river water can exert a downward pressure on the energy dissipation strips, thereby making the energy dissipation strips more stable as a whole. When the river water flows back to the river, the water diversion and return flow component can play a reverse drainage effect on the river water, and also make the overall sea flooding structure more stable.

[0017] 4. The energy dissipation strip of the present invention is evenly provided with multiple groups of supporting diversion columns extending into the gravel cushion layer, which play a role in fixing and limiting the energy dissipation strip, and can also play a role in diverting river water when it enters the water diversion and return flow component. In addition, both sides of the bottom of the energy dissipation strip are fixedly provided with limiting fixing teeth extending into the gravel cushion layer, which play an auxiliary fixing role for the energy dissipation strip;

[0018] 5. The present invention provides water holes connected to the gravel cushion layer at both ends of the energy dissipation strip. The water holes have important auxiliary functions for sea flooding prevention, such as drainage, pressure reduction and pulsation elimination. It has significant anti-scouring and anti-floating effects on the underlying sandy or non-hard and easily scourable soil riverbed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the front side of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the bottom surface of the present invention;

[0021] Figure 3 It is a cross-sectional view of the energy dissipation strip of the present invention;

[0022] Figure 4 It is a schematic diagram of the bottom structure of the energy dissipation strip block of the present invention;

[0023] Figure 5 It is a schematic diagram of the top structure of the energy dissipation bar block of the present invention;

[0024] Figure 6 It is a schematic diagram of the two-dimensional hinged steel bar arrangement of the present invention;

[0025] Figure 7 It is a schematic diagram of the hinged reinforcement arrangement on the side of the present invention.

[0026] In the figure: 1. Gravel cushion layer; 2. Energy dissipation strips; 3. Water diversion and return flow components; 4. Support diversion columns; 5. Water holes; 6. Limiting fixing teeth; 7. Extruded board; 8. Articulated steel bars. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0029] See also Figure 1-7 A novel hinged seafloor energy dissipation structure comprises a gravel cushion layer 1, an energy dissipation strip 2, an articulated steel bar 8, a water diversion and return flow component 3, a supporting diversion column 4, a limiting fixing tooth 6, and a water emitting hole 5. A plurality of groups of mutually cooperating energy dissipation strips 2 are evenly and staggeredly arranged on the upper surface of the gravel cushion layer 1. The energy dissipation strips 2 are articulated by articulated steel bars 8. A plurality of groups of water diversion and return flow components 3 are evenly arranged on the top of the energy dissipation strip 2, and the number of the water diversion and return flow components 3 is three. Supporting diversion columns 4 cooperating with the water diversion and return flow components 3 are evenly and fixedly arranged inside the energy dissipation strip 2, and the bottom of the supporting diversion column 4 passes through the bottom of the energy dissipation strip 2 and extends to the interior of the gravel cushion layer 1.

[0030] The present invention evenly staggers and splices multiple groups of energy dissipation bars in a certain order, and the upper surfaces of the multiple groups of energy dissipation bars are inclined to form a drop-type micro-fall structure between each group of energy dissipation bars. The energy dissipation bars are divided in a manner of breaking the whole into parts and are hinged into an integral sea floodplain through hinged steel bars. Three groups of water diversion return flow components 3 are evenly arranged above the inside of each group of energy dissipation bars 2. When the river water flushes the present invention, the water diversion return flow component 3 can play a good role of reverse water blocking and energy dissipation for the accumulated river water, and when the river water flows into the water diversion return flow component 3 in a positive direction, the river water can play a pulsating downward pressure role on the energy dissipation bars 2, thereby making the energy dissipation bars 2 more stable as a whole, and also making the overall sea floodplain structure more stable.

[0031] Please refer to Figure 2 and Figure 3Both sides of the bottom of the energy dissipation block 2 are fixed with limiting fixing teeth 6 extending into the interior of the gravel cushion layer 1, and the cross-section of the limiting fixing teeth 6 is arc-shaped. By setting the limiting fixing teeth 6, the present invention ensures a tight connection between the energy dissipation block 2 and the gravel cushion layer 1, and the energy dissipation block 2 will not loosen.

[0032] Please refer to Figure 1 and Figure 5 Water holes 5 are arranged at both ends of the energy dissipation block 2, the water holes 5 are connected with the gravel cushion layer 1, and the cross-section of the water holes 5 is circular. The present invention mainly eliminates the seepage pressure and surplus water at the bottom of the energy dissipation block 2 by arranging the water holes 5, reduces the pulsation effect, and quickly adapts to the water pressure fluctuation caused by the water depth variation at the top of the block.

[0033] Please refer to Figure 6 and Figure 7 The articulated steel bars 8 are evenly distributed longitudinally and transversely between the multiple groups of energy dissipation bars 2, and the articulated steel bars 8 are located in the lower middle part of the energy dissipation bars 2 and are distributed in a single layer. By arranging the articulated steel bars 8, the articulated steel bars 8 have both the reinforcement of the energy dissipation bars 2 and the longitudinal and transverse connection functions between the blocks, which can not only ensure the overall safety of the sea cover, but also adapt to the local displacement, settlement or bending of the sea cover foundation.

[0034] Please refer to Figure 3 An extruded plate 7 matching with the energy dissipation strips 2 is arranged between them, and the thickness of the extruded plate 7 is five millimeters. The present invention adopts a hard thin layer of extruded plate 7, which is suitable for the bending of the hinged steel bars 8 and the sinking of the plate.

[0035] Please refer to Figure 1 and Figure 3 The gravel cushion layer 1 is evenly spread and compacted by gravel blocks, and there is a certain gap inside the gravel cushion layer 1, and the relative density is not less than 0.65. The present invention sets the gap inside the gravel cushion layer 1 to facilitate the timely discharge of riverbed soil seepage water under the gravel cushion layer, so as to reduce the uplift pressure at the bottom of the flooding as much as possible.

[0036] Please refer to Figure 1 , Figure 3 and Figure 4 The supporting diverter column 4 and the energy dissipation block 2 are mutually engaged and connected, and the cross-section of the supporting diverter column 4 is elliptical. By setting the elliptical supporting diverter column 4, the present invention can effectively divert and cut the river water and reduce the residual energy of the water flow.

[0037] Please refer to Figure 1 , Figure 3 and Figure 4 The energy dissipation blocks 2 are heavy, and the cross section of the energy dissipation blocks 2 is trapezoidal. The cross section of the energy dissipation blocks 2 of the present invention is trapezoidal, which makes it convenient to form a height difference when multiple groups of energy dissipation blocks 2 are arranged and combined, thereby forming a slight drop difference in energy dissipation.

[0038] Working principle: When the dam is releasing water in severe conditions or during a major flood, the water flowing through the dam will generate a non-constant instantaneous discharge flow under the action of the water level difference between the upstream and downstream, resulting in water jumps of varying degrees. After dissipating energy through the energy dissipation pool, it enters the downstream seafloor section. Due to the large change in the water jump state, the residual energy of the water jump out of the pool also varies greatly. In order to prevent the residual energy out of the pool from scouring and hollowing out the downstream riverbed and endangering the safety of the hub, a seafloor with both rigidity and flexibility that can adapt to the displacement of the riverbed is set up to evenly eliminate the residual energy, so that the water flowing through the dam can smoothly and safely return to the downstream river channel, avoiding the occurrence of folding or vortex water flow that scours the downstream anti-scouring groove and riverbed, affecting the stability of the river. The present invention improves the traditional seafloor structure type, which can not only achieve accurate elimination of residual energy, but also solve the problem of the structural transition zone between the building and the riverbed with a rigid and flexible connection. The strips, wheel sequence and jump Compared with concrete blocks, the silo casting construction method saves costs, meets the requirements of saving stone resources, environmental protection, and energy saving, and has high ecological, environmental protection, economic and social value. A water diversion and return flow component 3 is arranged on the top of each group of energy dissipation blocks 2, and the water diversion and return flow component 3 is buried in the top of the energy dissipation block 2 as a shaping component. When the river water flushes the present invention, the water diversion and return flow component 3 can play a good role in positive water diversion and energy dissipation and reverse drainage of the accumulated river water, and when the river water flows forward into the water diversion and return flow component 3, the river water can exert a downward pressure on the energy dissipation block 2, thereby making the energy dissipation block 2 more stable as a whole, and when the river water flows back to the river, the water diversion and return flow component can have a reverse drainage effect on the river water, and also make the overall seafloor structure more stable.

[0039] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A novel hinged seafloor energy dissipation structure, comprising a crushed stone cushion layer (1), an energy dissipation strip (2), a hinged steel bar (8), a water diversion and return flow component (3), a supporting diversion column (4), a limiting fixing tooth (6), and a water venting hole (5), characterized in that: The upper surface of the crushed stone cushion layer (1) is evenly and staggeredly arranged with a plurality of groups of mutually cooperating energy dissipation strips (2), the energy dissipation strips (2) are hingedly connected by hinged steel bars (8), the top of the inner top of the energy dissipation strip (2) is evenly provided with a plurality of groups of water diversion return components (3), and the number of the water diversion return components (3) is three groups, and the inner part of the energy dissipation strip (2) is evenly and fixedly provided with supporting diversion columns (4) cooperating with the water diversion return components (3), and the bottom of the supporting diversion columns (4) passes through the bottom of the energy dissipation strip (2) and extends to the inner part of the crushed stone cushion layer (1); When the river water is scouring, the water diversion and return flow component (3) can play a good role in positive water diversion and energy dissipation and reverse drainage of the accumulated river water. When the river water flows into the water diversion and return flow component (3) in a positive direction, the river water can exert a downward pressure on the energy dissipation strip (2), thereby making the energy dissipation strip (2) more stable as a whole. When the river water flows back to the river, the water diversion and return flow component can exert a reverse drainage effect on the river water, thereby making the overall seafloor structure more stable. Both sides of the bottom of the energy dissipation strip (2) are fixedly provided with limiting fixing teeth (6) extending into the interior of the gravel cushion layer (1), and the cross section of the limiting fixing teeth (6) is arc-shaped; Water holes (5) are provided at both ends of the energy dissipation strip (2), the water holes (5) are connected to the gravel cushion layer (1), and the cross section of the water holes (5) is circular.

2. According to claim 1, the novel hinged sea-floor energy dissipation structure is characterized by: The hinged steel bars (8) are evenly distributed longitudinally and transversely between the multiple groups of energy dissipation strips (2), and the hinged steel bars (8) are distributed in a single layer in the energy dissipation strips (2).

3. According to claim 1, the novel hinged sea-floor energy dissipation structure is characterized by: An extruded plate (7) matching with the energy dissipation strips (2) is arranged between the energy dissipation strips (2), and the thickness of the extruded plate (7) is five millimeters.

4. According to claim 1, the novel hinged sea-floor energy dissipation structure is characterized by: The crushed stone cushion layer (1) is compacted by evenly spreading the crushed stone blocks, and there are certain gaps between the crushed stone blocks inside the crushed stone cushion layer (1), and the relative density is not less than 0.

65.

5. According to claim 1, the novel hinged sea-floor energy dissipation structure is characterized by: The supporting flow-dividing column (4) and the energy-dissipating strip (2) are mutually engaged and connected, and the cross section of the supporting flow-dividing column (4) is elliptical.

6. The novel hinged sea-floor energy dissipation structure according to claim 1 is characterized by: The energy dissipation strip block (2) is heavy, and the cross section of the energy dissipation strip block (2) is trapezoidal.

Images